Stainless steel bellows high-end market development way

Stainless stainless steel hydraulic fittings corrugated pipe industry development time is not long, no matter is good development results of product variety and quality technology go. With the perfection of market norms of the overall development also formed the three levels of high school low, more and more enterprises are aimed at the high-end market share. How to plan the development of high-end market sea delta intercepted some experts point to share with you.
Experts believe that the first thing is to improve their product quality, strict quality control, improve product design capability. Should be in the premise of its brand positioning, and learn from the outstanding works, creative and active design conception of classic works, and pay attention to the target customers to understand the whole style, highlight the product practical, fashion, or reflect the cultural heritage, to the customer personalized imagination space.
As the development of hardware, glass, sheet metal industry, directly affects the development of stainless stainless steel hydraulic fittings corrugated pipe. The development of accessories products with new features, the application of new materials, bring new revolution development industry is a stainless steel corrugated pipe. Now consumers pay attention to the concept of consumption, so to let people get visual enjoyment, let consumers have the heart of hope, the eye can see, can rest assured bold purchase.
There is a lot about the development direction of high-end industry insights, each position and the views of the sea island has always believed that enterprises should keep clear, clear understanding of their own development, look for the direction of development, to carry out the work step by step, be eager to hope for success, the complacent attitude is not desirable.

Stainless steel metal hose to do what performance test

Stainless steel metal metric hydraulic hose fittings with flexibility, corrosion resistance, high temperature resistance, tensile resistance etc.. To achieve such a sophisticated quality must have strict production processes control, but also the need for strict performance testing to ensure quality. The following sea island for you under the stainless steel metal hydraulic hose fittings must be what strict performance test before they leave the factory.
1 pressure test
Pressure test is also called the strength test, which belongs to the safety performance index test. The test pressure is 1.5 times the nominal pressure, test pressure medium for pure water, the chloride ion content should not exceed 25ppm. Each product must withstand voltage test. By using manual or electric pressure test pump pressure, pressure observation usually available 1.5--4 times of test pressure range of level 1.5 or above or equivalent efficacy of pressure gauge, pressure test instrument. During the experiment, the specimen is placed at one end of the straight hose, install the plug with the exhaust valve, the other end is connected with the pressure test pump outlet pipe, the water will be injected into the tube, exhaust air, exhaust valve closed, and then slowly increased pressure test pressure to the specified value, holding pressure 5min, check the sample status, failure form has no leakage, damage to parts such as abnormal. Requirements for qualified product does not allow failure form of sign of leakage or damage to parts such as abnormal.
2 air tightness test
Air tightness test is also a safety index test, each require a manufactured products are to be tested. Air tightness test in the nominal pressure, qualified products does not allow leakage phenomenon, air tightness test can be carried out in the pressure test qualified rear. Experiments using dry, clean air, or the need to use nitrogen or other protective gas as the test medium. The pressure device can adopt the compressor, air pressure generating device, the cylinder or cylinder group. Pressure observation usually adopts 1.5 grade above or equivalent measurement precision pressure gauge pressure testing instrument, with a full set of test equipment groove. Test specimen is arranged on one end of the hose plug, and the other end of the air outlet is connected with the pressurizing device, gas pressure equal to the nominal pressure, the specimen immersed in the water tank, remove the adsorbed on the net sleeve on the bubble, when the air pressure is stable after the pressure 10min check for gas leakage test piece.
Stainless steel metal hose is commonly used now do all sorts of equipment signal wire, wire and cable transmission, optical fiber protection, it and people's work life. If the product quality problems, will bring some loss. So rigorous performance testing is indispensable, and must be strictly implemented once found the product flaw, should be dealt with immediately, must not hold fluky mentality.

Stainless steel corrugated pipe application field is not common

In the general understanding of everybody, stainless steel corrugated hydraulic pipe fittings used for pipeline construction, gas pipeline, water pipeline and so on, but some places are not common, also has the application of stainless stainless steel hydraulic fittings corrugated pipe. Electric power, chemical industry, automobile, can imagine the application of stainless steel corrugated pipe in these areas?
1, the electric power engineering is also used. Gas turbine power generation equipment, superheater and other requirements of high temperature resistant and corrosion resistant components are also involved in gang stainless application of corrugated pipe.
2, for the field of automobile engineering. Stainless steel corrugated pipe is mainly used for automobile engine exhaust device, such as exhaust valve, spark plugs, pipes, exhaust purifier etc..
3, the application in chemical equipment. Stainless steel corrugated pipe is mainly used in strong corrosive working medium components, such as containers, pipelines, valves, pumps, heat exchanger etc..
4, marine also has applications. Stainless steel corrugated pipe application field of seawater corrosion resistance in sea platforms, ships, submarines need very extensive.
5, in the field of aerospace. Stainless steel corrugated pipe is mainly used for the certain requirements of aircraft turbine engine at high temperature and high strength parts, such as the combustion chamber and turbine blades, a main shaft, an exhaust system etc..

Characteristics of corrugated metal hose

Because manufacturing hydraulic hose manufacturers main parts of data is the selection of austenitic stainless steel, thus guarantee the heat resistance and corrosion resistance excellent hose, hose assembly temperature scale is extremely wide, 600 degree for -196, using the hose on pipeline through medium corrosive select the application of stainless steel business scale, corrosion resistance can ensure the hose.
The selection of 1Cr18Ni9Ti 1 stainless steel metal hose of stainless steel materials, with strong corrosion ability.
The 2 tube body for thin wall stainless steel pipe hydraulic forming, has strong flexibility, scalability, twists and anti vibration ability, weaving nets set strengthen maintenance, so that it has higher bearing ability.
The interface between the 3 ends of the hose can be made into other connection methods in addition to standard thread, flange, convenient connection and use.
4 the product not only adapted to the rotary joint matching, and widely used in soft connecting various fluid medium delivery.

The performance index of corrugated metal pipe

Rigidity
Load the stainless steel metal hose or other elastic elements demand unit displacement value is called an element stiffness, usually with K show. If the elastic properties of error linear element, the stiffness is no longer constant, but with the increase of the load change.
Nominal rigidity
The elastic element portray accounting is presented when the stiffness is called the nominal (or additional) stiffness. The measured it with the element stiffness error, especially the elastic element with nonlinear elastic characteristics. Nominal rigidity is representative of the curve where a little stiffness, should carefully consider. Generally speaking, the nominal rigidity the best not to directly select depicting the accounting value, but should use the product by modifying the value after the prototype test.
Stiffness tolerances
A group of elastic element stiffness promise of the slack test scale. For the same batch of elastic elements, each element stiffness are not the same, there is a slack scale. In order to ensure the use of performance elements, it is necessary to have a limit on the stiffness and laxity scale. On the elastic sensitive element, the stiffness of the tolerance demand restricted within the nominal value of +/-5%; usually works with the corrugated tube elastic element stiffness tolerances can be limited within the +/-50%.
Sensitivity
Metal corrugated hydraulic pipe fittings and other elastic element to accept the displacement quantity of unit load when the member is called element sensitivity. Rigidity and sensitivity are the main function parameters of corrugated hydraulic fitting adapters and other elastic elements, but they are two different ways to use that same characteristics. On different occasions, in order to facilitate the analysis of the problems, can choose between any kind of parameter.
Useful area
The elastic element on the completion of the pressure force or power of a pressure transducer, and an important function of the target area is useful. Useful area refers to the elastic element in the unit pressure effect, when the zero displacement can transform into a concentrated force size.
The use of life
The elastic element as there are two kinds of situation; one is operating in the load and displacement bound, and adhere to the load and displacement remains unchanged or rarely change, called static operation; another application is constantly cycle load and displacement reciprocating replacement change. The element is in the circulation work condition. Because the work condition is not the same, the damage of components or in the form of failure is not the same. The appearance of the elastic sensitive element operation in the elastic range, basically in the static operation condition, the use of life is very long, usually reaching tens of thousands of times to hundreds of thousands of times. Corrugated tube components used in the project, sometimes work in the elastic-plastic scale or alternating stress status, life as long as hundreds of dry time. Elements necessary given allowable operation life in cyclic operation, rule cycles, time and frequency.
Additional elastic component is the component life painted set expectations with life, demand during this period element does not promise appears tired, damage or failure of representation.

DKJ connector

The layout and characteristics: DKJ card type of flexible metal hydraulic hose adapters, steel and hose connections will no thread, save the threading process, only the screw is screwed into the can; metal joint is made of zinc alloy material by die casting, surface galvanized, frosted, or chrome plated; layout tight, high strength. Reliable, connection pipe and the metal hydraulic hose couplings surface is beautiful; the metal joint for sleeve type, stainless steel metal hose to the metal hose connection on the steel pipe is threaded metal hose; adaptation: JS type, JSH type, JSB type, JSHG type; adapting pipe: a thin steel wire tube, black and galvanized iron pipe (water, gas pipe); use DKJ card type metal joint note standard, scale steel hose connection.

Hydraulic fast joint prevention leakage

In the hydraulic system, whether it is a metal pipe joint, or hydraulic hose manufacturers connectors, are prone to leakage problem. The sleeve type pipe joint, mostly because of pipeline subjected to external force or large impact force, the card sets loose or pipe end deformation caused by leakage, you should check the card sleeve is losing a round, cutting edge has no defect, tube end is intact and the card sleeve nut tightening degree, also eliminate the pipeline external force. The flared fitting, mostly because of the flaring over, does not meet the quality requirements or repeated disassembly, causing the flaring deformation or crack causing leakage, the front end truncated re expanding. If the use of male and female cone top pressure seal, the leakage is due mostly to the two conical surface is damaged, can be used for grinding the conical surface grinding.
In some "from" ring on end face or the outer diameter sealing occasions, the leakage reason has the following kinds: "from" ring aging or deformation caused by leakage; "from" ring assembly is not in place, the two plane connection pressure uneven or "from" ring was cut from causing leakage; "" ring not compacting, elastic deformation caused by lack of leakage; "from" ring rabbet groove deep caused leakage. In this regard, the need to re select the identical diameter and section of coarse "from" ring, can also be provided with a sealing plane rabbet groove cutting or grinding, in order to reduce the rabbet groove depth, so that the "from" ring have enough elastic deformation (compression in general should be between 0.35-0.65mm).
For the pipe joint oil resistant rubber, wool, mild steel board, combined sealing washer or sealant leak, whatever the material, should first check the seal is damaged, and the rough situation such as deformation, aging, and then take appropriate measures.

Metal hose industry: in the financial crisis facing pressure, but the overall situation to.

Big investment has led to widespread overcapacity phenomenon, and industrial concentration is low, the structure is not reasonable, big and not strong problem is very prominent.
Enterprise independent innovation ability insufficient, pay attention to light, less investment, only the immediate interests while ignoring the long-term development, product homogenization phenomenon is obvious.
Facing the pressure of energy saving and emission reduction is still heavy metal hydraulic hose and fittings enterprise, product unit energy consumption and resource utilization and other aspects compared with the international advanced level there are still gaps. At the same time, the cost of enterprises are still hovering in the high.
In short, a metal hydraulic hose fitting enterprise facing financial crisis after crisis attitude, the pace of enterprise development and the fate will be decided. The crisis will eventually become a historical moment, the pace of development will not break. Metal hose enterprise after the storm subsided to stop the tide, will be more strong, will be more mature, will be more beautiful.

JR-2 type rectangular metal hose joint rule selection

The selection of JR-2 type rectangular metal metric hydraulic hose fittings joint right is a very important project, good metal hydraulic hose couplings and joint not only can make you very worry, effort, but also more money.
Introduces the following selection of JR-2 type rectangular metal hose several criteria.
1, liquid type and temperature, according to the different liquid choose liquid species, temperature and body material metal hose.
2, the pressure of the liquid metal soft joint selection of key, so in for different pressure of the liquid must choose strong pressure resistance of the joint.
3 determine the installation size and shape after ordering products.
The different structure of 4 JR-2 type rectangular metal hose, used in different environment, combined with the environment temperature, humidity, and dust, to select the joint type, material of body and the sealing material etc..
Construction of 5 valve has two kinds, one kind is the automatic switch valve, is a one-way switch type, so in the choice according to the valve structure selection of different joint.

Characteristics of the metal flexible joints

Corrosion resistance: 1 main metal soft joint with 304 or 316L stainless steel molding,made of stainless steel or carbon steel joints at both ends of the joint, has good corrosion resistance. Ensure that the sealing. 2 the appearance of the United States:metal soft joint appearance Cheng Liang, permanent bright as new. 3 high voltage:considering many practical work pressure, metal soft joint use of the environment and the use of state, all of the parameters are the result of a careful calculation and experiment, to ensure that the pressure in work safety. The 4 shock proof, dislocation: stainless steel corrugated hydraulic hose and fittings has good flexibility and compensation displacementcharacteristics. The 5 construction is good: metal soft joint for the thin wall metric hydraulic hose fittings, our company mainly engaged in stainless steel metal hose, the overall weight, greatly reduces the load of construction operation and construction time. 6: fittingsmanufacturing many kinds of existing metal soft joint diameter range: DN8-DN4000,other customized according to customer requirements.